EP1178598A3 - A method for synchronizing several brushless motors in an elevating device - Google Patents

A method for synchronizing several brushless motors in an elevating device Download PDF

Info

Publication number
EP1178598A3
EP1178598A3 EP01117764A EP01117764A EP1178598A3 EP 1178598 A3 EP1178598 A3 EP 1178598A3 EP 01117764 A EP01117764 A EP 01117764A EP 01117764 A EP01117764 A EP 01117764A EP 1178598 A3 EP1178598 A3 EP 1178598A3
Authority
EP
European Patent Office
Prior art keywords
several
signal
motors
elevating means
brushless
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01117764A
Other languages
German (de)
French (fr)
Other versions
EP1178598B1 (en
EP1178598A2 (en
Inventor
Kazuo Itoh
Toshiyuki Tachibana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itoh Denki Co Ltd
Original Assignee
Itoh Denki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Itoh Denki Co Ltd filed Critical Itoh Denki Co Ltd
Publication of EP1178598A2 publication Critical patent/EP1178598A2/en
Publication of EP1178598A3 publication Critical patent/EP1178598A3/en
Application granted granted Critical
Publication of EP1178598B1 publication Critical patent/EP1178598B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/04—Arrangements for controlling or regulating the speed or torque of more than one motor

Abstract

In an elevating device arranging several elevating means at several positions, and employing compact motors to drive the several elevating means, to synchronize the several motors of the several elevating means accurately for smooth elevation.
Several brushless motors are used for driving the elevating means. A run signal or a stop signal is sent to each of the brushless motors M1 to M4 via a synchronous operation circuit. Whether a signal is a run signal or a stop signal is determined by comparing the pulse signals corresponding to the rotations of the brushless motors with each other, and when the pulse signal of one brushless motor is larger than the pulse signal of another brushless motor, the brushless motor having the larger pulse signal stops.
EP01117764A 2000-08-01 2001-07-31 A method for synchronizing several brushless motors in an elevating device Expired - Lifetime EP1178598B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000232802A JP3376477B2 (en) 2000-08-01 2000-08-01 Method of synchronizing a plurality of brushless motors in a lifting device
JP2000232802 2000-08-01

Publications (3)

Publication Number Publication Date
EP1178598A2 EP1178598A2 (en) 2002-02-06
EP1178598A3 true EP1178598A3 (en) 2004-12-01
EP1178598B1 EP1178598B1 (en) 2009-12-30

Family

ID=18725423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01117764A Expired - Lifetime EP1178598B1 (en) 2000-08-01 2001-07-31 A method for synchronizing several brushless motors in an elevating device

Country Status (4)

Country Link
US (1) US20020024305A1 (en)
EP (1) EP1178598B1 (en)
JP (1) JP3376477B2 (en)
DE (1) DE60140925D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100619616B1 (en) * 2002-09-11 2006-09-01 미쓰비시덴키 가부시키가이샤 Elevator controller
US6989642B2 (en) * 2003-10-16 2006-01-24 Invacare Corporation Method and apparatus for embedding motor error parameter data in a drive motor of a power driven wheelchair
ATE409364T1 (en) * 2004-12-11 2008-10-15 Ebm Papst St Georgen Gmbh & Co METHOD AND ARRANGEMENT FOR CONTROLLING SYNCHRONOUS RUNNING IN A PLURALITY OF ELECTRONICALLY COMMUTATED MOTORS
US7268502B2 (en) 2004-12-11 2007-09-11 Ebm-Papst St. Georgen Gmbh & Co. Kg Method and arrangement for controlling the synchronous running of a plurality of electronically commutated motors
RU2290328C1 (en) * 2005-07-21 2006-12-27 Василий Васильевич Шкондин All-wheel-drive vehicle
DE202017103984U1 (en) * 2017-07-04 2018-10-05 Gebr. Bode Gmbh & Co. Kg swinging-sliding
KR102236804B1 (en) * 2019-11-21 2021-04-06 현대트랜시스 주식회사 Folding control apparatus and method of vehicle seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1148437A (en) * 1965-08-10 1969-04-10 Bbc Brown Boveri & Cie Method of and apparatus for controlling the speed of a drive motor and relative to that of a master motor
US3886417A (en) * 1973-03-28 1975-05-27 Fuji Electric Co Ltd Method and apparatus for controlling multiple suspension cranes
EP0526116A2 (en) * 1991-07-23 1993-02-03 Sharp Kabushiki Kaisha Servomotor control device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4060969B2 (en) 1998-12-25 2008-03-12 トヨタ自動車株式会社 lift device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1148437A (en) * 1965-08-10 1969-04-10 Bbc Brown Boveri & Cie Method of and apparatus for controlling the speed of a drive motor and relative to that of a master motor
US3886417A (en) * 1973-03-28 1975-05-27 Fuji Electric Co Ltd Method and apparatus for controlling multiple suspension cranes
EP0526116A2 (en) * 1991-07-23 1993-02-03 Sharp Kabushiki Kaisha Servomotor control device

Also Published As

Publication number Publication date
EP1178598B1 (en) 2009-12-30
DE60140925D1 (en) 2010-02-11
EP1178598A2 (en) 2002-02-06
JP2002051579A (en) 2002-02-15
US20020024305A1 (en) 2002-02-28
JP3376477B2 (en) 2003-02-10

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